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National Cancer Institute Thesaurus
Last uploaded:
February 23, 2024
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Preferred Name | L-Tyrosine | |
Synonyms |
(S)-2-Amino-3-(4-hydroxy-phenyl)propanoic acid TYROSINE, (L) L-Phenylalanine, 4-hydroxy- L-Tyrosine TYR TYROSINE Tyr Tyrosine |
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Definitions |
The levorotatory isomer of the aromatic amino acid tyrosine. L-tyrosine is a naturally occurring tyrosine and is synthesized in vivo from L-phenylalanine. It is considered a non-essential amino acid; however, in patients with phenylketonuria who lack phenylalanine hydroxylase and cannot convert phenylalanine into tyrosine, it is considered an essential nutrient. In vivo, tyrosine plays a role in protein synthesis and serves as a precursor for the synthesis of catecholamines, thyroxine, and melanin. |
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ID |
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C915 |
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ALT_DEFINITION |
Amino acid with side chain -CH2-C6H4OH.
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CAS_Registry |
60-18-4
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CHEBI_ID |
CHEBI:17895
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Chemical_Formula |
C9H11NO3
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code |
C915
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Concept_In_Subset |
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C142799 |
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Contributing_Source |
CRCH CTRP FDA
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DEFINITION |
The levorotatory isomer of the aromatic amino acid tyrosine. L-tyrosine is a naturally occurring tyrosine and is synthesized in vivo from L-phenylalanine. It is considered a non-essential amino acid; however, in patients with phenylketonuria who lack phenylalanine hydroxylase and cannot convert phenylalanine into tyrosine, it is considered an essential nutrient. In vivo, tyrosine plays a role in protein synthesis and serves as a precursor for the synthesis of catecholamines, thyroxine, and melanin.
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Display_Name |
L-Tyrosine
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FDA_UNII_Code |
42HK56048U
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FULL_SYN |
(S)-2-Amino-3-(4-hydroxy-phenyl)propanoic acid TYROSINE, (L) L-Phenylalanine, 4-hydroxy- L-Tyrosine TYR TYROSINE Tyr Tyrosine
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INFOODS |
TYR_G
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label |
L-Tyrosine
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Legacy Concept Name |
Tyrosine
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NSC Number |
9973
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Preferred_Name |
L-Tyrosine
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prefixIRI |
Thesaurus:C915
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Semantic_Type |
Amino Acid, Peptide, or Protein
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UMLS_CUI |
C0041485
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Unit |
g
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USDA_ID |
509
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subClassOf |
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